Fix normalization logic of the rustdoc extract doctests tests on Windows

Author: Urgau

tests/rustdoc-ui/extract-doctests-result.rs

@@ -3,6 +3,7 @@
 
 //@ compile-flags:-Z unstable-options --output-format=doctest
 //@ normalize-stdout: "tests/rustdoc-ui" -> "$$DIR"
+//@ normalize-stdout: "[A-Z]:[\\/](?:[^\\/]+[\\/])*?\$DIR" -> "$$DIR"
 //@ check-pass
 
 //! ```

tests/rustdoc-ui/extract-doctests-result.stdout

@@ -1 +1 @@
-{"format_version":2,"doctests":[{"file":"$DIR/extract-doctests-result.rs","line":8,"doctest_attributes":{"original":"","should_panic":false,"no_run":false,"ignore":"None","rust":true,"test_harness":false,"compile_fail":false,"standalone_crate":false,"error_codes":[],"edition":null,"added_css_classes":[],"unknown":[]},"original_code":"let x = 12;\nOk(())","doctest_code":{"crate_level":"#![allow(unused)]\n","code":"let x = 12;\nOk(())","wrapper":{"before":"fn main() { fn _inner() -> core::result::Result<(), impl core::fmt::Debug> {\n","after":"\n} _inner().unwrap() }","returns_result":true}},"name":"$DIR/extract-doctests-result.rs - (line 8)"}]}
+{"format_version":2,"doctests":[{"file":"$DIR/extract-doctests-result.rs","line":9,"doctest_attributes":{"original":"","should_panic":false,"no_run":false,"ignore":"None","rust":true,"test_harness":false,"compile_fail":false,"standalone_crate":false,"error_codes":[],"edition":null,"added_css_classes":[],"unknown":[]},"original_code":"let x = 12;\nOk(())","doctest_code":{"crate_level":"#![allow(unused)]\n","code":"let x = 12;\nOk(())","wrapper":{"before":"fn main() { fn _inner() -> core::result::Result<(), impl core::fmt::Debug> {\n","after":"\n} _inner().unwrap() }","returns_result":true}},"name":"$DIR/extract-doctests-result.rs - (line 9)"}]}

tests/rustdoc-ui/extract-doctests.rs

@@ -3,6 +3,7 @@
 
 //@ compile-flags:-Z unstable-options --output-format=doctest
 //@ normalize-stdout: "tests/rustdoc-ui" -> "$$DIR"
+//@ normalize-stdout: "[A-Z]:[\\/](?:[^\\/]+[\\/])*?\$DIR" -> "$$DIR"
 //@ check-pass
 
 //! ```ignore (checking attributes)

tests/rustdoc-ui/extract-doctests.stdout

@@ -1 +1 @@
-{"format_version":2,"doctests":[{"file":"$DIR/extract-doctests.rs","line":8,"doctest_attributes":{"original":"ignore (checking attributes)","should_panic":false,"no_run":false,"ignore":"All","rust":true,"test_harness":false,"compile_fail":false,"standalone_crate":false,"error_codes":[],"edition":null,"added_css_classes":[],"unknown":[]},"original_code":"let x = 12;\nlet y = 14;","doctest_code":{"crate_level":"#![allow(unused)]\n","code":"let x = 12;\nlet y = 14;","wrapper":{"before":"fn main() {\n","after":"\n}","returns_result":false}},"name":"$DIR/extract-doctests.rs - (line 8)"},{"file":"$DIR/extract-doctests.rs","line":13,"doctest_attributes":{"original":"edition2018,compile_fail","should_panic":false,"no_run":true,"ignore":"None","rust":true,"test_harness":false,"compile_fail":true,"standalone_crate":false,"error_codes":[],"edition":"2018","added_css_classes":[],"unknown":[]},"original_code":"let","doctest_code":null,"name":"$DIR/extract-doctests.rs - (line 13)"}]}
+{"format_version":2,"doctests":[{"file":"$DIR/extract-doctests.rs","line":9,"doctest_attributes":{"original":"ignore (checking attributes)","should_panic":false,"no_run":false,"ignore":"All","rust":true,"test_harness":false,"compile_fail":false,"standalone_crate":false,"error_codes":[],"edition":null,"added_css_classes":[],"unknown":[]},"original_code":"let x = 12;\nlet y = 14;","doctest_code":{"crate_level":"#![allow(unused)]\n","code":"let x = 12;\nlet y = 14;","wrapper":{"before":"fn main() {\n","after":"\n}","returns_result":false}},"name":"$DIR/extract-doctests.rs - (line 9)"},{"file":"$DIR/extract-doctests.rs","line":14,"doctest_attributes":{"original":"edition2018,compile_fail","should_panic":false,"no_run":true,"ignore":"None","rust":true,"test_harness":false,"compile_fail":true,"standalone_crate":false,"error_codes":[],"edition":"2018","added_css_classes":[],"unknown":[]},"original_code":"let","doctest_code":null,"name":"$DIR/extract-doctests.rs - (line 14)"}]}